NAD T 977: IDENTIFICATION OF CONTROLS

1  StandbY button

· 

Press this button to switch ON the T 977. The Standby LED indicator 

will turn from amber to blue. 

· 

Pressing the STANDBY button again turns the unit back to standby 

mode.

IMPORTANT NOTICES

·  For the STANDBY button to activate, plug-in the supplied mains power 

cord to a mains power source. Before connecting the plug to the mains 

powers source, connect firmly first the other end to T 977’s AC Mains 

input socket.

·  The preamplifier or controller connected to the T 977 should be switched 

ON first before powering up the T 977.

2  StandbY led

· 

This indicator will light up amber when the T 977 is at standby 

mode.

· 

When T 977 is powered up from standby mode, this indicator will 

illuminate blue.

3  Soft clipping indicator  

· 

This indicator is illuminated blue if the rear panel SOFT CLIPPING 

switch is set to ON position.  

· 

Refer also to the item below about SOFT CLIPPING at the 

IDENTIFICATION OF CONTROLS – REAR PANEL.

4  channel StatuS led 

· 

These LEDs indicate the status of each of the seven channels of 

the T 977.  When the T 977 is switched ON from standby mode, the 

Channel Status LEDs will initially turn red and then eventually turn 

blue. 

· 

When the T 977 goes to standby mode via the front panel Standby 

button or via the rear panel trigger source, the Channel Status LEDs 

will light up red and then fade out.

· 

The Channel Status LEDs will turn red when one or more of the 

internal seven amplifiers go to protect mode.  The other amplifiers 

that did not go to protect mode will continue to function as 

indicated by their respective illuminated blue LEDs.

protect mode

If one or more Channel Status LEDs turn red, this indicates that the 

protection circuitry of the T 977 had been engaged. Immediately press the 

Standby button and then unplug the mains power cord from the mains 

power source. Check if all speaker wires are connected correctly and that 

none of the wires are damaged, causing a short circuit. Another cause may 

be excessive heat build-up inside the amplifier. Make sure there is adequate 

ventilation around the amplifier and that none of its ventilation slots, top 

or bottom are blocked. After the amplifier has cooled down, it will function 

normally again. In case one or more of the Channel Status LEDs remained 

illuminated in red despite the checks mentioned above, immediately press 

the Standby button and then unplug the mains power cord from the mains 

power source. Have the unit inspected by a qualified service technician 

before attempting to use it again.

IDENTIFICATION OF CONTROLS

front panel

© NAD  T 977

SOFT

CLIPPING

CH 1

CH 2

CH 3

CH 4

CH 5

CH 6

CH 7

Seven Channel Power Amplifier 

T 977

1

2

3

4

5

ENGLISH

FR

ANÇ

AIS

ESP

AÑOL

IT

ALIANO

DEUT

SCH

NEDERL

ANDS

SVENSK

A

РУ

ССКИЙ

T977_eng_OM_v04.indd   5

17/04/2012   9:28am